742689

素因数分解:

$3^4\times {\mathrm{53}}^1\times {\mathrm{173}}^1$

素因数の和:238

約数の個数: 20

約数和(自身を含む): 1136916

約数和(自身を除く): 394227

約数列:

[1, 3, 9, 27, 53, 81, 159, 173, 477, 519, 1431, 1557, 4293, 4671, 9169, 14013, 27507, 82521, 247563, 742689]

約数ペア:

[(1, 742689), (3, 247563), (9, 82521), (27, 27507), (53, 14013), (81, 9169), (159, 4671), (173, 4293), (477, 1557), (519, 1431)]